What is the effect of intensity of incident light on the photoelectric current?

As the intensity of incident light increases

What is the effect of intensity on the stopping potential in photoelectric emission?

In photoelectric effect,

In a photoelectric experiment, if both the intensity and frequency of the incident light are doubled, then the saturation photoelectric current

How does threshold frequency depend on intensity of light in photoelectric effect?

in LED, intensity of emitted light

What is photoelectric effect ?